33.04% is the change from 339 to 451
Calculation steps:
[( 451 - 339 ) ÷ 339] x 100 = 33.04%
Formula
Percentage change = [(451 - 339) / 339] x 100
Subtract the new number by the original number
451 - 339 = 112
112 ÷ 339 = 0.3303834808259587
0.3303834808259587 x 100 = 33.04%